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Automated X-ray inspection is crucial for efficient and unobtrusive security screening in various public settings. However, challenges such as object occlusion, variations in the physical properties of items, diversity in X-ray scanning…

Image representations derived from pre-trained Convolutional Neural Networks (CNNs) have become the new state of the art in computer vision tasks such as instance retrieval. This work explores the suitability for instance retrieval of…

Computer Vision and Pattern Recognition · Computer Science 2016-05-02 Amaia Salvador , Xavier Giro-i-Nieto , Ferran Marques , Shin'ichi Satoh

It is challenging for humans to enable visual knowledge discovery in data with more than 2-3 dimensions with a naked eye. This chapter explores the efficiency of discovering predictive machine learning models interactively using new…

Machine Learning · Computer Science 2021-07-13 Rose McDonald , Boris Kovalerchuk

Motivated by the important archaeological application of exploring cultural heritage objects, in this paper we study the challenging problem of automatically segmenting curve structures that are very weakly stamped or carved on an object…

Computer Vision and Pattern Recognition · Computer Science 2017-11-23 Yuhang Lu , Jun Zhou , Jing Wang , Jun Chen , Karen Smith , Colin Wilder , Song Wang

Object detection is a trendy branch of computer vision, especially on human recognition and pedestrian detection. Recognizing the complete body of a person has always been a difficult problem. Over the years, researchers proposed various…

Computer Vision and Pattern Recognition · Computer Science 2019-10-29 Asati Minkesh , Kraittipong Worranitta , Miyachi Taizo

Pose estimation is usually tackled as either a bin classification or a regression problem. In both cases, the idea is to directly predict the pose of an object. This is a non-trivial task due to appearance variations between similar poses…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Georgios Kouros , Shubham Shrivastava , Cédric Picron , Sushruth Nagesh , Punarjay Chakravarty , Tinne Tuytelaars

We propose Shift R-CNN, a hybrid model for monocular 3D object detection, which combines deep learning with the power of geometry. We adapt a Faster R-CNN network for regressing initial 2D and 3D object properties and combine it with a…

Computer Vision and Pattern Recognition · Computer Science 2019-05-27 Andretti Naiden , Vlad Paunescu , Gyeongmo Kim , ByeongMoon Jeon , Marius Leordeanu

Accurate detection and localization of X-corner on both planar and non-planar patterns is a core step in robotics and machine vision. However, previous works could not make a good balance between accuracy and robustness, which are both…

Computer Vision and Pattern Recognition · Computer Science 2023-07-10 Ben Chen , Caihua Xiong , Quanlin Li , Zhonghua Wan

Recognizing multiple objects in an image is challenging due to occlusions, and becomes even more so when the objects are small. While promising, existing multi-label image recognition models do not explicitly learn context-based…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Hasib Zunair , A. Ben Hamza

Robotic apple harvesting has received much research attention in the past few years due to growing shortage and rising cost in labor. One key enabling technology towards automated harvesting is accurate and robust apple detection, which…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Pengyu Chu , Zhaojian Li , Kyle Lammers , Renfu Lu , Xiaoming Liu

Object Detection is critical for automatic military operations. However, the performance of current object detection algorithms is deficient in terms of the requirements in military scenarios. This is mainly because the object presence is…

Computer Vision and Pattern Recognition · Computer Science 2017-12-04 Shuo Liu , Zheng Liu

Current methods for 2D and 3D object understanding struggle with severe occlusions in busy urban environments, partly due to the lack of large-scale labeled ground-truth annotations for learning occlusion. In this work, we introduce a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-04-03 Khiem Vuong , N. Dinesh Reddy , Robert Tamburo , Srinivasa G. Narasimhan

In this paper, we propose a object detection method expressed as rotated bounding box to solve grasping challenge in the scenes where rigid objects and soft objects are mixed together. Compared with traditional detection methods, this…

Robotics · Computer Science 2019-09-23 Xiaoman Wang , Xin Jiang , Jie Zhao , Shengfan Wang , Yunhui Liu

Convolutional Neural Networks (CNNs) can provide accurate object classification. They can be extended to perform object detection by iterating over dense or selected proposed object regions. However, the runtime of such detectors scales as…

Computer Vision and Pattern Recognition · Computer Science 2014-04-08 Forrest Iandola , Matt Moskewicz , Sergey Karayev , Ross Girshick , Trevor Darrell , Kurt Keutzer

In this paper, we study the task of detecting semantic parts of an object, e.g., a wheel of a car, under partial occlusion. We propose that all models should be trained without seeing occlusions while being able to transfer the learned…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Zhishuai Zhang , Cihang Xie , Jianyu Wang , Lingxi Xie , Alan L. Yuille

Motivated by the detection of prohibited objects in carry-on luggage as a part of avionic security screening, we develop a CNN-based object detection approach for multi-view X-ray image data. Our contributions are two-fold. First, we…

Computer Vision and Pattern Recognition · Computer Science 2018-10-05 Jan-Martin O. Steitz , Faraz Saeedan , Stefan Roth

Due to object detection's close relationship with video analysis and image understanding, it has attracted much research attention in recent years. Traditional object detection methods are built on handcrafted features and shallow trainable…

Computer Vision and Pattern Recognition · Computer Science 2019-04-17 Zhong-Qiu Zhao , Peng Zheng , Shou-tao Xu , Xindong Wu

Albeit the recent progress in single image 3D human pose estimation due to the convolutional neural network, it is still challenging to handle real scenarios such as highly occluded scenes. In this paper, we propose to address the problem…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Xiang Guo , Yuchao Dai

RGBD-based real-time dynamic 3D reconstruction suffers from inaccurate inter-frame motion estimation as errors may accumulate with online tracking. This problem is even more severe for single-view-based systems due to strong occlusions.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-16 Wenbin Lin , Chengwei Zheng , Jun-Hai Yong , Feng Xu

This paper introduces a Deep Learning Convolutional Neural Network model based on Faster-RCNN for motorcycle detection and classification on urban environments. The model is evaluated in occluded scenarios where more than 60% of the…

Computer Vision and Pattern Recognition · Computer Science 2018-08-10 Jorge E. Espinosa , Sergio A. Velastin , John W. Branch